I just think that he gets a lot right that a lot of self-improvement authors get wrong (mostly coming down to the character vs. personality ethic, if you remember that part). I tried Getting Things Done but for me it wasn’t more than “don’t waste mental energy on things you could write down” and “organize things simply”. I find that the problem isn’t one of paralysis and not knowing what to do, it’s about spending time on the wrong things in the first place. GTD happily lets you spend all your time outside of Quadrant II, and be really well-organized while doing so, but my problem is working on that Quadrant II time.